Nephele aequivalens is a moth

Moth

A moth is an insect closely related to the butterfly, both being of the order Lepidoptera. Moths form the majority of this order; there are thought to be 150,000 to 250,000 different species of moth , with thousands of species yet to be described...

 of the Sphingidae

Sphingidae

Sphingidae is a family of moths , commonly known as hawk moths, sphinx moths and hornworms, that includes about 1,200 species . It is best represented in the tropics but there are species in every region . They are moderate to large in size and are distinguished among moths for their rapid,...

 family. It is known from forests up to 5,000 feet and heavy woodland throughout tropical Africa

Africa

Africa is the world's second largest and second most populous continent, after Asia. At about 30.2 million km² including adjacent islands, it covers 6% of the Earth's total surface area and 20.4% of the total land area...

.

The length of the forewings is 45-52 mm and the wingspan

Wingspan

The wingspan of an airplane or a bird, is the distance from one wingtip to the other wingtip. For example, the Boeing 777 has a wingspan of about ; and a Wandering Albatross caught in 1965 had a wingspan of , the official record for a living bird.The term wingspan, more technically extent, is...

is about 116 mm, making it the largest species in the genus. The body and wings are dark greyish olive and the abdomen is unmarked. The forewings have a thick
straight dark diagonal line running from the tornus to the middle of the costa. The basal, subbasal, antemedial and postmedial lines are faint, irregular and incomplete. The submarginal is complete, more regular and more distinct. The hindwings are very dark olive, with the apical third being darker.